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    COMPRESSION AND TIMELY DELIVERY OF WELL-TEST DATA
    12.
    发明申请
    COMPRESSION AND TIMELY DELIVERY OF WELL-TEST DATA 审中-公开

    公开(公告)号：US20190215007A1

    公开(公告)日：2019-07-11

    申请号：US16356371

    申请日：2019-03-18

    Applicant: Schlumberger Technology Corporation

    Inventor： Clement Probel ,  Carlos Merino ,  Andriy Gelman ,  Julius Kusuma

    IPC: H03M7/30

    CPC classification number: H03M7/30

    Abstract: A method is described for performing, by a processor, one or more queries on one or more sensors, for one or more data collected by the one or more sensors, at predetermined instants of time by a downhole modem operably coupled to the one or more sensors, prior to receiving a request for transmission of the data from a surface modem. The method also includes receiving, by the processor, one or more data from one or more sensors in response to the one or more queries, and storing, by the processor, the one or more data in a buffer coupled to the downhole modem.

    System and Method for Downhole Signal Enhancement
    15.
    发明申请
    System and Method for Downhole Signal Enhancement 审中-公开
    井下信号增强系统与方法

    公开(公告)号：US20150218937A1

    公开(公告)日：2015-08-06

    申请号：US14424430

    申请日：2013-08-27

    Applicant: Schlumberger Technology Corporation

    Inventor： David Kirk Conn ,  Lee Garth ,  Julius Kusuma

    IPC: E21B47/18 ,  E21B47/01

    CPC classification number: E21B47/18 ,  E21B47/01 ,  E21B47/06

    Abstract: A system and method for downhole signal enhancement. The system includes a downhole tool having one or more sensors coupled thereto. The one or more sensors may measure internal pressure and one or more parameters selected from the group consisting of external pressure, pressure sensor temperature, weight on bit, torque on bit, bending moment, roll gyro, tangential acceleration, radial acceleration, and axial acceleration. A noise estimator may be coupled to the downhole tool and estimate a downhole noise component in the one or more parameters. A telemetry modulator may be coupled to the downhole tool and generate a signal that includes the estimated downhole noise component and a telemetry component. The downhole noise component in the signal may be reduced based at least partially upon the estimate.

    Abstract translation: 一种用于井下信号增强的系统和方法。 该系统包括具有耦合到其上的一个或多个传感器的井下工具。 一个或多个传感器可以测量内部压力和从包括外部压力，压力传感器温度，钻头重量，扭矩，弯矩，滚动陀螺仪，切向加速度，径向加速度和轴向加速度的组中选择的一个或多个参数 。 噪声估计器可以耦合到井下工具并且估计一个或多个参数中的井下噪声分量。 遥测调制器可以联接到井下工具并产生包括估计的井下噪声分量和遥测分量的信号。 信号中的井下噪声分量可以至少部分地基于估计来减小。

    Wired drill pipe connector and sensor system
    16.
    发明授权
    Wired drill pipe connector and sensor system 有权

    公开(公告)号：US11066927B2

    公开(公告)日：2021-07-20

    申请号：US15342966

    申请日：2016-11-03

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Julius Kusuma ,  Jimmy Varughese

    IPC: E21B47/12 ,  E21B17/00 ,  E21B47/02 ,  E21B17/02

    Abstract: A downhole tool and a wired drill string assembly including a downhole tool. The downhole tool includes a body having a first connector and a second connector. At least the first connector is configured to be connected to a wired drill pipe. The downhole tool also includes one or more electrical components coupled to the body and configured to receive a first signal and transmit a second signal. The downhole tool further includes a first transmission line extending along the body to the first connector and electrically connected to the one or more electrical components. The first transmission line is configured to be electrically connected to a transmission wire of the wired drill pipe when the wired drill pipe is connected to the first connector.

    Wireless communication and telemetry for completions
    18.
    发明授权
    Wireless communication and telemetry for completions 有权

    公开(公告)号：US09765614B2

    公开(公告)日：2017-09-19

    申请号：US14763885

    申请日：2014-01-23

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Reza Taherian ,  Stephen Dyer ,  Julius Kusuma

    IPC: G01V3/00 ,  E21B47/12

    CPC classification number: E21B47/122

    Abstract: Wireless communication and electromagnetic telemetry between various surface or downhole devices may be provided using two or more dipole antennas. The dipole antennas may be formed, for example, by electrically isolating, for each electric dipole antenna, two electrically conductive portions. The two electrically conductive portions are part of a downhole casing, a downhole liner, a completion, a production tube, or a downhole tool. The two or more electric dipole antennas are disposed in different sections of a completed well, in one or more lateral wells, in different completed wells, or in any combination of those. An electromagnetic signal is transmitting from at least one of the two or more dipole antennas and received at any other of the two or more dipole antennas, thereby providing telemetry or wireless communication between the dipole antennas of the petrophysical devices.

    Synchronization between devices
    19.
    发明授权
    Synchronization between devices 有权
    设备之间的同步

    公开(公告)号：US08866633B2

    公开(公告)日：2014-10-21

    申请号：US13889944

    申请日：2013-05-08

    Applicant: Schlumberger Technology Corporation

    Inventor： Michael Montgomery ,  Julius Kusuma ,  Jean Seydoux ,  Desheng Zhang

    IPC: G01V11/00 ,  G06F1/12

    CPC classification number: G01V11/002 ,  G01V13/00 ,  G01V2200/12 ,  G06F1/12 ,  H04J3/0638 ,  H04L7/0054 ,  H04L7/04 ,  H04L7/08 ,  H04L2007/047

    Abstract: The present disclosure relates to a method to determine a clock signal when separate clocks are used. In one embodiment, a disciplined clock system comprising an update subsystem and a synthesis subsystem is provided. A first clock phase estimate is provided to the update subsystem and used, along with the update subsystem, to determine a frequency offset estimate and a phase offset estimate. The clock signal is determining using the frequency offset estimate, the phase offset estimate, and the synthesis subsystem. Alternatively, two clocks can be synchronized by generating a signal associated with a first clock; modulating the signal; transmitting the modulated signal; receiving the modulated signal by a receiver associated with a second clock; correlating the received signal; determining the time of arrival of the received signal; determining the time difference between the two clocks; and synchronizing the two clocks.

    Abstract translation: 本公开涉及当使用单独的时钟时确定时钟信号的方法。 在一个实施例中，提供了包括更新子系统和综合子系统的纪律时钟系统。 向更新子系统提供第一时钟相位估计，并与更新子系统一起使用以确定频率偏移估计和相位偏移估计。 时钟信号是使用频率偏移估计，相位偏移估计和合成子系统来确定的。 或者，可以通过产生与第一时钟相关联的信号来同步两个时钟; 调制信号; 发送调制信号; 通过与第二时钟相关联的接收机接收调制信号; 对接收的信号进行相关; 确定接收到的信号的到达时间; 确定两个时钟之间的时差; 并同步两个时钟。

    DOWNHOLE ELECTROMAGNETIC NETWORK
    20.
    发明申请
    DOWNHOLE ELECTROMAGNETIC NETWORK 审中-公开

    公开(公告)号：US20200291768A1

    公开(公告)日：2020-09-17

    申请号：US16314165

    申请日：2017-06-28

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Julius Kusuma ,  Robert Tennent ,  Arnaud Croux

    IPC: E21B47/13 ,  E21B17/00 ,  G01V3/12

    Abstract: The present disclosure describes methods and systems that can be used for controlling and coordinating the transmission of electromagnetic telemetry signals from and/or to a plurality of downhole tools to minimize or reduce electromagnetic interference between the transmissions. Signal coordination control is also disclosed that allows for duplex bidirectional communication of transmissions of electromagnetic telemetry signals such that electromagnetic interference between the transmissions is minimized or reduced.

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